Hi guys, I got my first EQ mount yesterday and I excitedly mounted my DSLR to it and took it outside to play around. I ended up saving some subs of Andromeda, and after processing them in PI I have noticed I have some issues with the stars. They appear to me to be out of focus, even though I double checked that I had good focus with BYN. Can someone with more experience help me figure out what is causing my star issues and how to fix it? I know for sure that my mount was not polar aligned very well, but I wasn't noticing any star trailing for the 30s subs that I was doing at 200mm. Is this coma and I need to stop down my lens?
Camera - Nikon D5300
Lens - Nikon DX AF-S NIKKOR 55-200mm f/4-5.6G ED
Mount - Meade LXD75 EQ
Processed in PixInsight 1.8
Edited by Keudn, 14 September 2018 - 01:15 PM.